CVE-2020-16123

Summary

An Ubuntu-specific patch in PulseAudio created a race condition where the snap policy module would fail to identify a client connection from a snap as coming from a snap if SCM_CREDENTIALS were missing, allowing the snap to connect to PulseAudio without proper confinement. This could be exploited by an attacker to expose sensitive information. Fixed in 1:13.99.3-1ubuntu2, 1:13.99.2-1ubuntu2.1, 1:13.99.1-1ubuntu3.8, 1:11.1-1ubuntu7.11, and 1:8.0-0ubuntu3.15.

Affected Software

VendorProductVersion RangeStatus
Canonicalpulseaudio1:13.99.3-1 < 1:13.99.3-1ubuntu2affected
Canonicalpulseaudio1:13.99.2-1 < 1:13.99.2-1ubuntu2.1affected
Canonicalpulseaudio1:13.99.1-1 < 1:13.99.1-1ubuntu3.8affected
Canonicalpulseaudio1:11.1-1 < 1:11.1-1ubuntu7.11affected
Canonicalpulseaudio1:8.0-0 < 1:8.0-0ubuntu3.15affected

Weaknesses

  • CWE-362: CWE-362 Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)

ADP Enrichment

CVE Program Container

Additional References

References